Special Counsel Robert Mueller is looking into an alleged scheme where former White House National Security Adviser Michael Flynn would have forcibly removed a Muslim cleric from the United States and delivered him to Turkey in exchange for millions of dollars, according to a new report.

Flynn, and his son Michael Flynn Jr., would have been paid as much as $15 million to bring Fethullah Gulen to Turkey, the Wall Street Journalreports. Gulen is seen as a political enemy by Turkish President Recep Tayyip Erdogan.

Like Flynn, many of the charges appear to be outside the realm of Russian interference; however, some speculate that the charges could be used as a way to get information on other members of the campaign.

The investigation into Flynn centers on a meeting in December 2016 at the ‘21’ Club in New York, where Flynn and members of the Turkish government discussed taking Gulen out of the United States and transporting him to the prison-island of Imrali, the Wall Street Journal reports.